US3923458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air treatment device
Assignee: Comercial Super Dix S A
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Filing: 1972-09-26
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Granted: 1975-12-02
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Expires: 1992-09-26
Abstract
Abstract A device for treatment of air in a room or other space in which the air is perfumed, or deodorized, or purified. A solid refractory material acts as a carrier for air-treatment material thereon which is gasified upon heating of the carrier material. The solid carrier material is held in a casing within which an electrically energized heating element, preferably in the form of a lamp, heats the refractory material and the air-treatment material is liberated to effect the air treatment. The lamp also serves as an indicator light to show whether or not the device is energized.
Inventors
- 👤 Gonzalo Moran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:28
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/015; A61L9/02; A61L9/03
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
134 words
AN AIR TREATMENT DEVICE FOR PERFUMING, DEODORIZING AND PURIFYING AIR COMPRISING, A TUBULAR CASING, GRATE MEANS AT EACH END OF SAID CASING PROVIDING COMMUNICATION BETWEEN THE INTERIOR OF SAID CASING AND THE ATMOSPHERE, A RESPECTIVE HOLDING MEANS AXIALLY SPACED FROM EACH SAID GRATE MEANS, A CAKE OF SOLID CARRIER MATERIAL CARRING THEREON A HEAT ACTIVATED GASIFIABLE, AIR-TREATMENT MATERIAL MOUNTED ON EACH SAID HOLDING MEANS ADJACENT A SAID GRATE MEANS, AN ELECTRICALLY ACTIVATED LAMP WITHIN SAID CASING ADJACENT SAID CAKES OF CARRIER MATERIAL TO HEAT SAID CARRIER MATERIAL AND LIBERATE THE TREATMENT MATERIAL THEREIN WHICH PASSES THROUGH THE RESPECTIVE GRATE MEANS TO THE AREA ADJACENT THE CASING, MEANS FOR CONNECTING SAID LAMP TO AN ELECTRICAL POWER SOURCE, AND MEANS IN SAID CASING THROUGH WHICH THE LAMP IS VIEWABLE TO DETERMINE IF THE DEVICE IS ENERGIZED.
Claim 2
Dependent Claim
134 words
AN AIR TREATMENT DEVICE FOR PERFUMING, DEODORIZING AND PURIFYING AIR COMPRISING, A TUBULAR CASING, GRATE MEANS AT EACH END OF SAID CASING PROVIDING COMMUNICATION BETWEEN THE INTERIOR OF SAID CASING AND THE ATMOSPHERE, A RESPECTIVE HOLDING MEANS AXIALLY SPACED FROM EACH SAID GRATE MEANS, A CAKE OF SOLID CARRIER MATERIAL CARRING THEREON A HEAT ACTIVATED GASIFIABLE, AIR-TREATMENT MATERIAL MOUNTED ON EACH SAID HOLDING MEANS ADJACENT A SAID GRATE MEANS, AN ELECTRICALLY ACTIVATED LAMP WITHIN SAID CASING ADJACENT SAID CAKES OF CARRIER MATERIAL TO HEAT SAID CARRIER MATERIAL AND LIBERATE THE TREATMENT MATERIAL THEREIN WHICH PASSES THROUGH THE RESPECTIVE GRATE MEANS TO THE AREA ADJACENT THE CASING, MEANS FOR CONNECTING SAID LAMP TO AN ELECTRICAL POWER SOURCE, AND MEANS IN SAID CASING THROUGH WHICH THE LAMP IS VIEWABLE TO DETERMINE IF THE DEVICE IS ENERGIZED.
Claim 3
Dependent Claim
32 words
An air treatment device according to claim 1 in which each said holding means comprises a washer-like element having a central opening, a portion of said lamp located adjacent said holding means.
Claim 4
Dependent Claim
27 words
A device as in claim 1 wherein said means for viewing the lamp comprises a circular cap of transparent plastic material in a wall of said casing.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |